However, the same student writing for a general audience should cite his or her source, as this information would not be common knowledge to the average reader. The following are examples of statements that need citation: Between 1990 and 2002, the United States was the recipient of $1.27 trillion in direct foreign investment.
Vitamin C iontophoresis is very effective for removing fine wrinkles and treating post-inflammatory hyper-pigmentation and melasma. It has become one of the major methods of maintaining healthy skin.After the treatment: Patients will be able to notice a natural glow immediately after treatment.his method can be used to drive a drug that cannot normally penetrate the skin across the barrier, in this case Vitamin C. A weekly iontophoresis treatment promote formation of collagen and continuously inhibit the formation of melanin pigment.
Vitamin C regulates the synthesis of collagen and it does this by hydroxylating collagen which makes it more stable and improves the way it supports the epidermis. Reducing skin pigmentation VC not only reduces melanin production but it also reduces oxidation of the melanin that is produced.